source/filetarget.cpp

   1 #include <msp/fs/stat.h>
   2 #include <msp/fs/utils.h>
   3 #include <msp/strings/format.h>
   4 #include <msp/time/utils.h>
   5 #include "builder.h"
   6 #include "filetarget.h"
   7 #include "sourcepackage.h"
   8
   9 using namespace std;
  10 using namespace Msp;
  11
  12 FileTarget::FileTarget(Builder &b, const SourcePackage *p, const FS::Path &a):
  13         Target(b, generate_name(p, a)),
  14         path(a),
  15         size(0)
  16 {
  17         package = p;
  18
  19         builder.get_vfs().register_path(path, this);
  20
  21         if(FS::Stat st = FS::lstat(path))
  22         {
  23                 mtime = st.get_modify_time();
  24                 size = st.get_size();
  25         }
  26 }
  27
  28 string FileTarget::generate_name(const SourcePackage *pkg, const FS::Path &pth)
  29 {
  30         if(pkg)
  31         {
  32                 if(FS::descendant_depth(pth, pkg->get_source())>=0)
  33                 {
  34                         FS::Path relpath = FS::relative(pth, pkg->get_source());
  35                         return format("<%s>%s", pkg->get_name(), relpath.str().substr(1));
  36                 }
  37                 else if(FS::descendant_depth(pth, pkg->get_builder().get_prefix())>=0)
  38                 {
  39                         FS::Path relpath = FS::relative(pth, pkg->get_builder().get_prefix());
  40                         return "<prefix>"+relpath.str().substr(1);
  41                 }
  42         }
  43
  44         return pth.str();
  45 }
  46
  47 void FileTarget::touch()
  48 {
  49         mtime = Time::now();
  50         signal_bubble_rebuild.emit();
  51 }
  52
  53 void FileTarget::check_rebuild()
  54 {
  55         if(!tool)
  56                 return;
  57
  58         if(!mtime)
  59                 mark_rebuild("Does not exist");
  60         else
  61         {
  62                 for(Dependencies::iterator i=depends.begin(); (i!=depends.end() && !needs_rebuild()); ++i)
  63                 {
  64                         FileTarget *ft = dynamic_cast<FileTarget *>(*i);
  65                         if(ft && ft->get_mtime()>mtime)
  66                                 mark_rebuild((*i)->get_name()+" has changed");
  67                         else if((*i)->needs_rebuild())
  68                                 mark_rebuild((*i)->get_name()+" needs rebuilding");
  69                 }
  70         }
  71
  72         if(!needs_rebuild() && package && package->get_config().get_mtime()>mtime)
  73                 mark_rebuild("Package options changed");
  74 }